body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

header {
    background: #333;
    color: #fff;
    padding: 10px 0;
    text-align: center;
}

#about, #articles {
    padding: 20px;
    margin: 20px;
    background: #fff;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

#articles ul {
    list-style-type: none;
    padding: 0;
}

#articles ul li {
    margin: 10px 0;
}

#articles ul li a {
    text-decoration: none;
    color: #333;
}

#articles ul li a:hover {
    text-decoration: underline;
}